Nut-lock.



w. SGHWI-IRING.

NUT LOOK.

APPLICATION FILED 13110.26, 190s.

Patented Apr. 2o, 1909.

Wim @no PATENT QFFICE.

WILLIAM SOHWERING, OF PHILADELPHIA, PENNSYLVANIA.

NUT-LOCK. i

Specification of Letters Patent.

Patented April 20, 1909.

Application led December 26, 1908. Serial No. 469,363.

To all whom it may concern:

Be it known that I, WILLIAM SeHwnRiNe, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented certain new and useful Improvements inNut-Locks, of which the following is a specification.

My invention relates to improvements in nut locks, more particularlydesigned for use in connection with bolts and nuts for securing the fishplates at the jointsof railroad rails, the object of the invention beingto provide a construction of nut lock which can be readily attached,which will absolutely prevent any possibility of the nut turning on thebolt, and which can be quickly removed when desired. 1 V ith theseobjects in view, the invention consists in certain novel features ofconstruction, and combinations, and arrangement'of parts as will be morefully hereinafter described and pointed out in the claim.

In the accompanying drawings, Figure 1,-

is a view illustrating my improvements applied to a rail joint. Fig. 2,is a similar View in horizontalV section, and Fig. 3, is a detailperspective view of they nut securing housing.

1, 1, represent railroad rails, 2 fish plates at the opposite sidesthereof, and 3 a bolt passing through one of said rails and through thefish plates.

4 represents a bar, disposed longitudinally against a sh plate 2,provided with an opening to receive the bolt 3, and preferably made witha lug 5 to enter an openingfin the fishV plate, and prevent anypossibility of rotary movement of the bar 4. rlhis bar 4 is providedwith an integral post 6 having a recess 7, and a set screw 8 is screwedinto said post, and its inner end projects into the recess 7, for apurpose which will hereinafter appear.-

An ordinary nut 9 is screwed onto the end of bolt 3, and a split washer10 is preferably interposed between the nut 9 and the bar 4. i 11represents my improved housing, which is preferably of rectangular form,and of slightly less internal area than is nut 9, so as to fit snuglythereon, and this housing is provided with an angle arm 12, adapted tobe projected into the recess 7 in the post 6, and be securely locked bymeans of the set screw It will thus be observed that when the Y eralformand arrangement of parts described,

without departing from my invention, and hence I do not restrict myselfto the precise details set forth, but consider myself at liberty to makesuch changes and alterations as fairly fall within the spirit and scopeof my invention.

Having thus described my invention what I claim as newand desire tosecure by Letters Patent is:

In combination with a railroad rail, fish plates thereon, and a boltprojected through said rail and fish plates, of a bar located against afish plate, and having an opening to receive the bolt, a lug on said barprojected into an .opening in a iish plate, a post onsaid bar having arecess therein, a nut on the bolt, a housing inclosing the nut, an anglearm on the housing located in the recess in the post, and a set screw inthe post clamping said angle arm therein.

y In testimony whereof I have signed my name to this specification inthe presence of two subscribing witnesses.

WILLIAM SCHWERING.

VWitnessesz R. H. KRENKEL, J. A. L. MULHALL.

